Extraction at Berkeley of a keystone from a tile on the Stardust cometary dust collector.
Extraction at Berkeley of a keystone from a tile on the Stardust cometary dust collector.
在伯克利进行的从“星尘”号彗星尘埃收集器中提取楔石。
Extraction at Berkeley of a keystone from a tile on the Stardust cometary dust collector.
在伯克利进行的从“星尘”号彗星尘埃收集器中提取楔石。